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Optical Instrument Window NSN 4920-00-815-2659

Item Description

A color free item of transparent or translucent material, usually optical glass, having specific light dispersive and refractive properties. This item must have two plane-parallel surfaces and is designed for use in an optical instrument to provide a barrier to foreign matter and/or permit light transmission in or to the optical system.

NSN 4920-00-815-2659 NSN: 4920-00-815-2659

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Features and Characteristics

Width
Between 49.276 millimeters and 49.784 millimeters
Thickness
Between 2.910 millimeters and 3.170 millimeters
Length
Between 78.740 millimeters and 79.248 millimeters
Bevel Depth
Between 0.260 millimeters and 0.390 millimeters
Refraction Index
1.5180
Polished Surface
Both
Dispersion
64.5 angstroms
Polished Periphery
Not provided
Bevel Angle In Deg
45.000
Material
Glass
Material
Glass
Fsc Application Data
Test set, indicator assembly, fault locating part no. 535e211g1
FSC
4920 Aircraft Maintenance And Repair Shop Specialized Equipment
NIIN
008152659
NSN
4920008152659

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
568A271P1
Cage Code:
89954
Status:
A
MSDS:

Q & A

Frequently asked questions for NSN 4920-00-815-2659
What are the manufacturers of nsn 4920008152659?
Does this nsn 4920008152659 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4920008152659
A color free item of transparent or translucent material, usually optical glass, having specific light dispersive and refractive properties. this item must have two plane-parallel surfaces and is designed for use in an optical instrument to provide a barrier to foreign matter and/or permit light transmission in or to the optical system.
Does nsn 4920008152659 contain any precious metals?
Precious metal content is unknown.
Does nsn 4920008152659 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4920008152659?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
10908
FIIG:
T271-F
App. Key:
FA
Cond. Code:
2
Status:
A

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